Inventor · disambiguated record
Tsutomu Saka
Also filed as: SAKA TSUTOMU
19 granted patents·426 citations·filing 1981–1998
96Inventor score
Files withHONDA MOTOR CO LTD11DAIDO STEEL CO LTD4HITACHI POWDERED METALS2HITACHI METALS LTD1RIKEN KK1
Top patents by PatentIndex Score
19 records- 0191US5273570ASecondary hardening type high temperature wear-resistant sintered alloyHONDA MOTOR CO LTD·Filed 1992·Granted Dec 28, 1993·46 cites·7 claims
- 0288US5733214ASystem for adjusting tension of endless transmitting belt in internal combustion engineHONDA MOTOR CO LTD·Filed 1996·Granted Mar 31, 1998·56 cites·18 claims
- 0382US5466276AValve seat made of secondary hardening-type high temperature wear-resistant sintered alloyHONDA MOTOR CO LTD·Filed 1993·Granted Nov 14, 1995·27 cites·7 claims
- 0482US5049183ASintered machine part and methodHITACHI POWDERED METALS·Filed 1990·Granted Sep 17, 1991·32 cites·14 claims
- 0582US4928641ALubricant supplying system for DOHC type multi-cylinder internal combustion engineHONDA MOTOR CO LTD·Filed 1988·Granted May 29, 1990·35 cites·6 claims
- 0680US4883027AValve operating system for internal combustion enginesHONDA MOTOR CO LTD·Filed 1988·Granted Nov 28, 1989·35 cites·16 claims
- 0776US4485770AMaterial for valve-actuating mechanism of internal combustion engineHONDA MOTOR CO LTD·Filed 1981·Granted Dec 4, 1984·21 cites·5 claims
- 0875US5660938AFe-Ni-Cr-base superalloy, engine valve and knitted mesh supporter for exhaust gas catalyzerHITACHI METALS LTD·Filed 1996·Granted Aug 26, 1997·34 cites·17 claims
- 0967US4795609AHigh-strength steel for valve springs, process for producing the steel, and valve springs made of the sameDAIDO STEEL CO LTD·Filed 1987·Granted Jan 3, 1989·14 cites·6 claims
- 1064US5779972AHeat resisting alloys, exhaust valves and knit meshes for catalyzer for exhaust gasDAIDO STEEL CO LTD·Filed 1997·Granted Jul 14, 1998·17 cites·18 claims
- 1163US4923183ANon-circular cross-section coil springHONDA MOTOR CO LTD·Filed 1988·Granted May 8, 1990·21 cites·4 claims
- 1262US5952590ASintered alloy having superb wear resistance and process for producing the sameHITACHI POWDERED METALS·Filed 1998·Granted Sep 14, 1999·16 cites·18 claims
- 1360US5567383AHeat resisting alloysDAIDO STEEL CO LTD·Filed 1995·Granted Oct 22, 1996·15 cites·16 claims
- 1460US4975229AProcess for producing laminated resin foamHONDA MOTOR CO LTD·Filed 1988·Granted Dec 4, 1990·20 cites·18 claims
- 1552US4911112AValve operating system for internal combustion enginesHONDA MOTOR CO LTD·Filed 1988·Granted Mar 27, 1990·13 cites·7 claims
- 1650US4952199AToothed sintered pulleyHONDA MOTOR CO LTD·Filed 1989·Granted Aug 28, 1990·10 cites·7 claims
- 1742US4810287AProcess for producing steel for valve springsDAIDO STEEL CO LTD·Filed 1988·Granted Mar 7, 1989·7 cites·3 claims
- 1836US5676192ACast-in processRIKEN KK·Filed 1995·Granted Oct 14, 1997·4 cites·16 claims
- 1932US5529641ACast iron slide memberHONDA MOTOR CO LTD·Filed 1994·Granted Jun 25, 1996·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →